(19)
(11) EP 1 118 518 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.12.2002 Bulletin 2002/49

(43) Date of publication A2:
25.07.2001 Bulletin 2001/30

(21) Application number: 00128612.9

(22) Date of filing: 28.12.2000
(51) International Patent Classification (IPC)7: B60T 8/36, F16K 31/06
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.12.1999 US 474685

(71) Applicant: Kelsey Hayes Company
Livonia, Michigan 48150 (US)

(72) Inventors:
  • Linkner, Herbert L. Jr.
    Dexter, Michigan 48130-0343 (US)
  • Tackett, Wendell D.
    Ann Arbor, Michigan 48103 (US)

(74) Representative: von Hellfeld, Axel, Dr. Dipl.-Phys. 
Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2
81541 München
81541 München (DE)

   


(54) Solenoid control valve for a hydraulic control unit


(57) A control valve (20) for controlling fluid flow in a hydraulic control unit (18) of, for example, a vehicular brake system (10) includes a tube (52). A flux cap (50) is pressed onto one end of the tube (52). A flux ring pole (54) is pressed onto an opposite end of the tube (52). An armature (34) is slidably received in the tube (52). A coil subassembly (70) is provided about the tube (52), flux cap (50), and flux ring pole (54). A valve seat (36) receives the flux ring pole (54). The valve seat (36) is mounted in a bore of a hydraulic control unit (18) of a vehicular brake system (10). Alternate embodiments using a "three piece" armature sleeve having a center non-magnetic section are also disclosed.






Search report